Question: How is the number of out of school, North African children determined?
Paraphrase: Which is the way to determine the number of out of school children in North Africa?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q27381 p:P2573 ?s . ?s ps:P2573 ?x filter(contains(?x , '6.55695e+06')) . ?s pq:P459 ?value}